US11627980B2 - Ultrasonic scalpel bit - Google Patents

Ultrasonic scalpel bit Download PDF

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Publication number
US11627980B2
US11627980B2 US16/489,305 US201816489305A US11627980B2 US 11627980 B2 US11627980 B2 US 11627980B2 US 201816489305 A US201816489305 A US 201816489305A US 11627980 B2 US11627980 B2 US 11627980B2
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Prior art keywords
bit
tip
ridge
bar
ultrasonic scalpel
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US16/489,305
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US20200029996A1 (en
Inventor
Qun Cao
Songtao ZHAN
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Jiangsu SMTP Technology Co Ltd
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Jiangsu SMTP Technology Co Ltd
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Assigned to JIANGSU SMTP TECHNOLOGY CO., LTD. reassignment JIANGSU SMTP TECHNOLOGY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CAO, Qun, ZHAN, Songtao
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1657—Bone breaking devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320074—Working tips with special features, e.g. extending parts blade
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072—Working tips with special features, e.g. extending parts
    • A61B2017/320074—Working tips with special features, e.g. extending parts blade
    • A61B2017/320075—Working tips with special features, e.g. extending parts blade single edge blade, e.g. for cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system

Definitions

  • the present disclosure belongs to the technical field of medical instruments, and in particular to an ultrasonic scalpel bit.
  • an ultrasonic scalpel bit comprising a bit tip, a bit bar and a bit body, one end of the bit bar being connected to the bit tip, and the other end of the bit bar being connected to the bit body, wherein a main body of the bit tip is of a flat sheet structure, an upper and a lower face of which respectively form an upper bit ridge and a lower bit ridge of the bit tip; a protrusion is formed at a front end of the upper bit ridge; the upper bit ridge has a thickness greater than that of the flat sheet structure and that of the lower bit ridge; and the protrusion is smooth and free of edges.
  • the bit tip is bent to one side at a portion of the bit tip that is connected to the bit bar, such that the bit tip is at an angle to the bit bar.
  • the protrusion is in the shape of a circle or an ellipse.
  • the lower bit ridge is of a blade-like structure or a toothed structure.
  • a front end of the bit tip is provided with a front-end bit blade.
  • the upper bit ridge transitions to the lower bit ridge through a circular arc-shaped portion at a tip head of the bit tip, the arc-shaped portion being provided with a toothed structure.
  • the protrusion transitions to the front-end bit blade of the bit tip through a step, a circular arc or a bevel.
  • the bit bar is of a hollow structure, the hollow structure extending up to the front end of the bit tip, and a liquid injection hole is provided in a side face of a cylindrical structure of the bit tip, or a side face of a flat-sheet-shaped cutting portion of the bit tip, or the foremost end of the bit tip.
  • the bit bar is connected to the bit tip and the bit body respectively through a bevel or a circular arc-shaped face with a smooth transition.
  • the other end of the bit body is connected to a specific ultrasonic host via an ultrasonic transducer, and the other end of the bit body is provided with connection threads, which are internal or external connection threads.
  • the ultrasonic scalpel bit of the present disclosure can concentrate all the energy generated by the ultrasonic transducer on the front end portion of the bit, so that the front end portion of the bit of the tool has the highest energy output, achieving the strongest working effect.
  • the head-protected ultrasonic scalpel bit of the present disclosure can help a surgeon to bypass the spinal cord for performing a longitudinal cutting operation in a narrow space during a posterior osteotomy operation for vertebral body resection, and provides a safe protection part, so that it is possible to safely complete the operation without hurting the spinal cord.
  • the time of surgery is shortened, and the safety of the operation is improved.
  • the ultrasonic scalpel bit of the present disclosure is of a hollow structure, and the bit tip of the bit is provided with a liquid injection hole, which can ensure that the injected liquid flows out of the bit tip of the bit, and that excised tissues can be immediately discharged, the visual field at an incision is clear and clean, and the remaining tissues to be retained can be protected from being damaged. In this way, the risk of the surgery is further reduced, and the safety and success rate of surgery are improved.
  • FIG. 1 is a schematic structural view of an ultrasonic scalpel bit in the prior art
  • FIG. 2 is a schematic perspective view of an ultrasonic scalpel bit of a first embodiment of the present disclosure
  • FIG. 3 is a front view of a bit tip of the ultrasonic scalpel bit of the first embodiment of the present disclosure
  • FIG. 4 is a right view of the bit tip of the ultrasonic scalpel bit of the first embodiment of the present disclosure
  • FIG. 5 is a bottom view of the bit tip of the ultrasonic scalpel bit of the first embodiment of the present disclosure
  • FIG. 6 is a schematic perspective view of an ultrasonic scalpel bit of a second embodiment of the present disclosure.
  • FIG. 7 is a front view of a bit tip of the ultrasonic scalpel bit of the second embodiment of the present disclosure.
  • FIG. 8 is a right view of the bit tip of the ultrasonic scalpel bit of the second embodiment of the present disclosure.
  • FIG. 9 is a schematic perspective view of an ultrasonic scalpel bit of a third embodiment of the present disclosure.
  • FIG. 10 is a front view of a bit tip of the ultrasonic scalpel bit of the third embodiment of the present disclosure.
  • FIG. 11 is a right view of the bit tip of the ultrasonic scalpel bit of the third embodiment of the present disclosure.
  • FIG. 12 is a schematic view showing an operation in the use of the ultrasonic scalpel bit of the present disclosure for surgery.
  • orientation or position relations indicated by the terms “center”, “upper”, “lower”, “left”, “right”, “vertical” “horizontal”, “inner”, “outer”, etc. are based on the orientation or position relation shown in the accompanying drawings and are intended to facilitate the description of the present disclosure and simplify the description only, rather than indicating or implying that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and will not be interpreted as limiting the present disclosure.
  • the terms “first”, “second” and “third” are for descriptive purposes only and should not be construed as indicating or implying relative importance.
  • connection should be understood in a broad sense. Unless otherwise explicitly specified or defined, for example, it may be a fixed connection, a detachable connection or an integrated connection; may be a mechanical connection or an electrical connection; and may be a direct connection or an indirect connection through an intermediate medium, or may be a communication between the interior of two elements.
  • mounting may be a fixed connection, a detachable connection or an integrated connection; may be a mechanical connection or an electrical connection; and may be a direct connection or an indirect connection through an intermediate medium, or may be a communication between the interior of two elements.
  • FIGS. 2 to 5 show an ultrasonic scalpel bit of a first embodiment of the present disclosure.
  • FIG. 2 is a schematic perspective view of the ultrasonic scalpel bit of the first embodiment of the present disclosure
  • FIG. 3 is a front view of a bit tip of the ultrasonic scalpel bit of the first embodiment
  • FIG. 4 is a right view of the bit tip of the ultrasonic scalpel bit
  • FIG. 5 is a bottom view of the bit tip of the ultrasonic scalpel bit.
  • the ultrasonic scalpel bit of the present disclosure comprises a bit tip 1 , a bit bar 2 , and a bit body 3 .
  • bit bar 2 is connected to the bit tip 1 , and the other end of the bit bar 2 is connected to one end of the bit body 3 .
  • the other end of the bit body 3 is connected to a specific ultrasonic host via an ultrasonic transducer.
  • a main body of the bit tip 1 is flat (sheet-shaped) and is formed as a flat sheet structure 10 .
  • An upper and a lower face of the flat sheet structure 10 respectively form an upper bit ridge 11 and a lower bit ridge 12 of the bit tip 1 .
  • a protrusion 14 is formed at a front end of the upper bit ridge 11 .
  • the upper bit ridge 11 has a thickness greater than that of the flat sheet structure 10 and that of the lower bit ridge 12 .
  • the protrusion 14 is smooth and free of edges. That is to say, there is no sharp bit blade on the protrusion 14 .
  • the bit tip 1 is bent to one side at a portion that is connected to the bit bar 2 , such that the bit tip 1 is at an angle to the bit bar 2 .
  • the protrusion 14 may be in the shape of a circle or an ellipse.
  • the protrusion 14 transitions to a front end of the bit tip through a stepped portion, a circular arc-shaped portion or a bevel.
  • the lower bit ridge 12 is edged to form a cutting blade.
  • the front end of the bit tip 1 is provided with a front-end bit blade 13 .
  • the ultrasonic scalpel bit of the first embodiment of the present disclosure all the energy generated by the ultrasonic transducer can be concentrated to the front end portion of the bit, so that the front end portion of the bit of the tool has the highest energy output, achieving the strongest working effect.
  • the ultrasonic scalpel bit of the first embodiment of the present disclosure has a head protection, it is possible to help a surgeon to bypass the spinal cord to perform a longitudinal cutting operation in a narrow space during a posterior osteotomy operation for vertebral body resection, so that it is possible to safely complete the operation without hurting the spinal cord, thereby significantly reducing the risk of the surgery.
  • the bit tip 1 is bent to one side at a position where the bit tip is connected to the bit bar 2 , such that the bit tip 1 is at an angle to the bit bar 2 .
  • the bit bar 2 may be of a hollow structure, and a liquid injection hole (not shown) may be provided in a portion of the bit bar 2 that is close to the bit tip 1 for directly injecting a rinsing liquid to the bit tip 1 .
  • the hollow part may extend up to the front end of the bit tip, and a liquid injection hole or groove (not shown) is provided in a side face of a cylindrical structure of the bit tip, or a side face of a flat-sheet-shaped cutting portion of the bit tip, or the foremost end of the bit tip.
  • the ultrasonic scalpel bit is of a hollow structure, and the bit tip is provided with a liquid injection hole, which can ensure that the injected liquid flows out of the portion of the bit bar 2 that is close to the bit tip 1 , and sufficient liquid can be injected.
  • FIGS. 6 to 8 show an ultrasonic scalpel bit of a second embodiment of the present disclosure.
  • FIG. 6 is a schematic perspective view of the ultrasonic scalpel bit of the second embodiment of the present disclosure
  • FIG. 7 is a front view of a bit tip of the ultrasonic scalpel bit of the second embodiment
  • FIG. 8 is a right view of the bit tip of the ultrasonic scalpel bit.
  • the ultrasonic scalpel bit of the present disclosure comprises a bit tip 1 , a bit bar 2 , and a bit body 3 .
  • One end of the bit bar 2 is connected to the bit tip 1
  • the other end of the bit bar 2 is connected to one end of the bit body 3 .
  • a main body of the bit tip 1 is flat (i.e. sheet-shaped) and is formed as a flat sheet structure 10 .
  • An upper and a lower face of the flat sheet structure 10 respectively form an upper bit ridge 11 and a lower bit ridge 12 of the bit tip 1 .
  • a protrusion 14 is formed at a front end of the upper bit ridge 11 .
  • the upper bit ridge 11 has a thickness greater than that of the flat sheet structure 10 and that of the lower bit ridge 12 .
  • the protrusion 14 is smooth and free of edges, and thus has no sharp bit blade.
  • the protrusion 14 may be in the shape of a circle or an ellipse.
  • the protrusion 14 transitions to a front end of the bit tip through a stepped portion, a circular arc-shaped portion or a bevel.
  • the front end of the bit tip 1 is provided with a front-end bit blade 13 .
  • the ultrasonic scalpel bit of the second embodiment of the present disclosure is different in that the lower bit ridge 12 is of a toothed structure.
  • Each tooth 16 of the toothed structure may be in the shape of a triangle, a trapezoid or a circular arc. It is also possible to form the toothed structure on the basis that the lower bit ridge 12 has been edged, that is, to form a beveled, toothed structure.
  • the energy generated by the ultrasonic transducer can be more efficiently concentrated to the cutting portion, so that the working point of the bit has the highest energy output.
  • the presence of the toothed structure can facilitate the positioning during surgery while improving the cutting efficiency.
  • the ultrasonic scalpel bit of the second embodiment of the present disclosure also has the head protection, it is possible to help a surgeon to bypass the spinal cord for performing a longitudinal cutting operation in a narrow space during a posterior osteotomy operation for vertebral body resection, so that it is possible to safely complete the operation without hurting the spinal cord, thereby significantly reducing the risk of the surgery.
  • the bit bar 2 may also be of a hollow structure, and a liquid injection hole (not shown) may be provided in a portion of the bit bar 2 that is close to the bit tip 1 for directly injecting rinsing liquid to the bit tip 1 .
  • a liquid injection hole (not shown) may be provided in a portion of the bit bar 2 that is close to the bit tip 1 for directly injecting rinsing liquid to the bit tip 1 .
  • One end of the bit bar 2 is connected to the bit tip 1 , and the other end of the bit bar 2 is connected to the bit body 3 .
  • the bit bar 2 smoothly transitions to the bit body 3 through a bevel or a circular arc-shaped face.
  • the ultrasonic scalpel bit is of a hollow structure, and the bit tip is provided with a liquid injection hole, which can ensure that the injected liquid flows out of the portion of the bit bar 2 that is close to the bit tip 1 , and sufficient liquid can be injected.
  • the entire bit head and the contacted tissue can be completely exposed to cleaning and cooling of the injected liquid in real time, so that the risk of the surgery is further reduced, and the safety and success rate of surgery are improved.
  • FIGS. 9 to 11 show an ultrasonic scalpel bit of a third embodiment of the present disclosure.
  • FIG. 9 is a schematic perspective view of the ultrasonic scalpel bit of the third embodiment of the present disclosure
  • FIG. 10 is a front view of a bit tip of the ultrasonic scalpel bit of the third embodiment
  • FIG. 11 is a right view of the bit tip of the ultrasonic scalpel bit.
  • the ultrasonic scalpel bit of the present disclosure comprises a bit tip 1 , a bit bar 2 , and a bit body 3 .
  • One end of the bit bar 2 is connected to the bit tip 1
  • the other end of the bit bar 2 is connected to the bit body 3 .
  • the bit body 3 is connected to a specific ultrasonic host via an ultrasonic transducer.
  • a main body of the bit tip 1 is flat (i.e. sheet-shaped) and is formed as a flat sheet structure 10 .
  • An upper and a lower planar face of the flat sheet structure 10 respectively form an upper bit ridge 11 and a lower bit ridge 12 of the bit tip 1 .
  • a protrusion 14 is formed at a front end of the upper bit ridge 11 .
  • the upper bit ridge 11 has a thickness greater than that of the flat sheet structure 10 and that of the lower bit ridge 12 .
  • the protrusion 14 is smooth and free of edges.
  • the protrusion 14 may be in the shape of a circle or an ellipse.
  • the protrusion 14 transitions to a front end of the bit tip through a stepped portion, a circular arc-shaped portion or a bevel.
  • the front end of the bit tip 1 is provided with a front-end bit blade 13 .
  • the ultrasonic scalpel bit of the third embodiment of the present disclosure is different in that the upper bit ridge 11 transitions to the lower bit ridge 12 through a circular arc-shaped portion 15 at a front end portion of the bit tip 1 .
  • the circular arc-shaped portion is provided with teeth 16 , forming a toothed structure.
  • each tooth 16 of the toothed structure may be in the shape of a triangle, a trapezoid or a circular arc. It is also possible to form the toothed structure on the basis that the circular arc-shaped portion has been edged, that is, to form a beveled, toothed structure.
  • the energy generated by the ultrasonic transducer can also be more efficiently concentrated to the cutting portion, so that the working point of the bit has the highest energy output.
  • the presence of the circular arc-shaped toothed structure can facilitate the positioning during surgery while improving the cutting efficiency, and it is possible to apply the ultrasonic scalpel bit to more complicated surgical operations.
  • the ultrasonic scalpel bit of the third embodiment of the present disclosure also has the head protection, it is possible to help a surgeon to bypass the spinal cord for performing a longitudinal cutting operation in a narrow space during a posterior osteotomy operation for vertebral body resection, so that it is possible to safely complete the operation without hurting the spinal cord, thereby significantly reducing the risk of the surgery.
  • the bit bar 2 may also be of a hollow structure, and a liquid injection hole (not shown) may be provided in a portion of the bit bar 2 that is close to the bit tip 1 for directly injecting rinsing liquid to the bit tip 1 , so that sufficient liquid can be injected.
  • a liquid injection hole (not shown) may be provided in a portion of the bit bar 2 that is close to the bit tip 1 for directly injecting rinsing liquid to the bit tip 1 , so that sufficient liquid can be injected.
  • one end of the bit bar 2 is connected to the bit tip 1 , and the other end of the bit bar 2 is connected to one end of the bit body 3 .
  • the bit bar 2 may smoothly transition to the bit body 3 through a bevel or a circular arc-shaped face.
  • the other end of the bit body 3 is provided with connection threads 31 .
  • the connection threads 31 may be either internal or external.
  • the connection threads 31 of the tail portion of the bit body 3 are connected to a specific ultrasonic transducer and are tightened using a corresponding wrench, and the ultrasonic transducer is then connected to a specific ultrasonic host, so that the ultrasonic scalpel bit is ready for operation.
  • FIG. 12 is a schematic view showing the use of the ultrasonic scalpel bit of the first to third embodiments of the present disclosure for spinal surgery.
  • the bit tip 1 of the ultrasonic scalpel bit of the present disclosure is interposed between a spinal cord 30 and a vertebra 40 , to remove a lesion 50 compressing the spinal cord 30 .
  • the spinal cord 30 Due to the relatively large thicknesses of the upper bit ridge 11 and the protrusion 14 of the bit tip 1 , the spinal cord 30 can be protected from injury during surgery, so that the success rate of the surgery is improved, and the risk of the surgery is reduced.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Mechanical Engineering (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgical Instruments (AREA)
  • Knives (AREA)
US16/489,305 2017-03-10 2018-02-09 Ultrasonic scalpel bit Active 2038-08-18 US11627980B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201720232078.5U CN207306710U (zh) 2017-03-10 2017-03-10 一种超声刀刀头
CN201720232078.5 2017-03-10
PCT/CN2018/075951 WO2018161772A1 (zh) 2017-03-10 2018-02-09 一种超声刀刀头

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US20200029996A1 US20200029996A1 (en) 2020-01-30
US11627980B2 true US11627980B2 (en) 2023-04-18

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US (1) US11627980B2 (zh)
EP (1) EP3593743B1 (zh)
JP (1) JP6946445B2 (zh)
KR (1) KR102282121B1 (zh)
CN (1) CN207306710U (zh)
AU (1) AU2018232045B2 (zh)
ES (1) ES2933514T3 (zh)
MX (1) MX2019010705A (zh)
WO (1) WO2018161772A1 (zh)

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US10660663B2 (en) * 2016-05-25 2020-05-26 Ethicon Llc Ultrasonic surgical instrument blade with heat reduction feature

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US5047043A (en) 1986-03-11 1991-09-10 Olympus Optical Co., Ltd. Resecting device for living organism tissue utilizing ultrasonic vibrations
JPH047807Y2 (zh) 1988-02-03 1992-02-28
US5391144A (en) 1990-02-02 1995-02-21 Olympus Optical Co., Ltd. Ultrasonic treatment apparatus
US5188102A (en) * 1990-05-11 1993-02-23 Sumitomo Bakelite Company Limited Surgical ultrasonic horn
US20050177184A1 (en) 2004-02-09 2005-08-11 Easley James C. Torsional dissection tip
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AU2018232045A1 (en) 2019-09-12
KR20190112152A (ko) 2019-10-02
WO2018161772A1 (zh) 2018-09-13
AU2018232045B2 (en) 2020-03-05
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CN207306710U (zh) 2018-05-04
US20200029996A1 (en) 2020-01-30
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EP3593743B1 (en) 2022-11-30
KR102282121B1 (ko) 2021-07-26

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